Did she really just say that? Cate Blanchett drops F-bomb on live TV after becoming first Australian to win two Oscars for acting

Cate Blanchett left pretentious talk at the door when taking questions from media after winning the Best Actress Oscar for her role in Blue Jasmine on Sunday.

During the Q&A session which was being broadcast live on CNN, an Australian journalist pointed out to Blanchett that she's the first ever Australian to take home two Academy Awards for acting - her first in 2004 for portraying Katherine Hepburn in The Aviator.

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She said what? Cate Blanchett let slip an expletive while being interviewed on live TV after winning the Oscar for Best Actress

Without missing a beat the 44-year-old responded in a typically Australian fashion: 'And don't you f---ing forget it!'

Her candid response elicited loud laughs from the gathered media.

Despite sweeping the pool at several award shows leading up to Sunday night's main event, Cate looked genuinely shocked as her name was announced by last year's Best Actor winner Daniel Day-Lewis.

Breaking records: Cate became the first Australian ever to win two Academy Awards for acting. She won her first in 2004 for her portrayal of Katherine Hepburn in The Aviator

'Judi Dench... at the age of 79 her film (The Best Exotic Marigold Hotel) is so successful she is doing a sequel.'

Cate also thanked Blue Jasmine director Woody Allen, who is currently shrouded in controversy after his adopted daughter Dylan Farrow alleged he sexually abused her at the age of seven, in a recent New York Times article.'

Allen was not present at the awards show on Sunday evening.

'I'm so very proud that Blue Jasmine stayed in cinemas as long as it did,' she said. 'Thank you so much Woody for casting me. I truly appreciate it.'

Dazzling: Cate lit up the stage in her embellished Giorgio Armani gown

Cate also reminded of the importance of women in film, prompting a rousing applause from her female-strong audience.

(There are those) who are still foolishly clinging to the idea that female films with women at the center are niche experiences.' she said. 'They are not. Audiences want to see them, and in fact, they earn money.'

'The world is round people.'

Cate, who along with husband Andrew Upton had acted as co-artistic Director of the Sydney Theatre Company since 2009, also praised the company for helping her become a 'better actor'.

Finally I would like to thank every single person in the Sydney Theatre company... It has made me a better actor,' she said. 'There is so much talent in Australia.'

Incredible achievement: Catherine Martin became the most successful Australian in Oscars history when she won two awards for costume design on The Great Gatsby. She won two in 2001 for Moulin Rouge

Cate was not the only Australian flying the flag during the evening.

Catherine Martin won two Oscars for her work on The Great Gatsby - taking home Best Costume Design and Best Production Design.

It makes the costume designer the most successful Australian in Oscars history after winning two for her work on Moulin Rouge in 2001.